/****************************************************************************

**

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the Qt Designer of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

** This file contains pre-release code and may not be distributed.

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at qt-info@nokia.com.

**

**

**

**

**

**

**

**

** $QT_END_LICENSE$

**

****************************************************************************/

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists for the convenience

// of Qt Designer.  This header

// file may change from version to version without notice, or even be removed.

//

// We mean it.

//

#ifndef LAYOUTINFO_H

#define LAYOUTINFO_H

#include "shared_global_p.h"

QT_BEGIN_NAMESPACE

class QWidget;

class QLayout;

class QLayoutItem;

class QDesignerFormEditorInterface;

class QFormLayout;

class QRect;

class QString;

namespace qdesigner_internal {

class QDESIGNER_SHARED_EXPORT LayoutInfo

{

public:

    enum Type

    {

        NoLayout,

        HSplitter,

        VSplitter,

        HBox,

        VBox,

        Grid,

        Form,

        UnknownLayout // QDockWindow inside QMainWindow is inside QMainWindowLayout - it doesn't mean there is no layout

    };

    static void deleteLayout(const QDesignerFormEditorInterface *core, QWidget *widget);

    // Examines the immediate layout of the widget (will fail for Q3Group Box).

    static Type layoutType(const QDesignerFormEditorInterface *core, const QWidget *w);

    // Examines the managed layout of the widget

    static Type managedLayoutType(const QDesignerFormEditorInterface *core, const QWidget *w, QLayout **layout = 0);

    static Type layoutType(const QDesignerFormEditorInterface *core, const QLayout *layout);

    static Type layoutType(const QString &typeName);

    static QString layoutName(Type t);

    static QWidget *layoutParent(const QDesignerFormEditorInterface *core, QLayout *layout);

    static Type laidoutWidgetType(const QDesignerFormEditorInterface *core, QWidget *widget, bool *isManaged = 0, QLayout **layout = 0);

    static bool inline isWidgetLaidout(const QDesignerFormEditorInterface *core, QWidget *widget) { return laidoutWidgetType(core, widget) != NoLayout; }

    static QLayout *managedLayout(const QDesignerFormEditorInterface *core, const QWidget *widget);

    static QLayout *managedLayout(const QDesignerFormEditorInterface *core, QLayout *layout);

    static QLayout *internalLayout(const QWidget *widget);

    // Is it a a dummy grid placeholder created by Designer?

    static bool isEmptyItem(QLayoutItem *item);

};

QDESIGNER_SHARED_EXPORT void getFormLayoutItemPosition(const QFormLayout *formLayout, int index, int *rowPtr, int *columnPtr = 0, int *rowspanPtr = 0, int *colspanPtr = 0);

QDESIGNER_SHARED_EXPORT void formLayoutAddWidget(QFormLayout *formLayout, QWidget *w, const QRect &r, bool insert);

} // namespace qdesigner_internal

QT_END_NAMESPACE

#endif // LAYOUTINFO_H